Componentize variations_url_constants.*

components/variations/BUILD.gn

 # Copyright 2014 The Chromium Authors. All rights reserved.
 # Use of this source code is governed by a BSD-style license that can be
 # found in the LICENSE file.
 
 if (is_android) {
   import("//build/config/android/rules.gni")
 }
 
 source_set("variations") {
   sources = [
@@ skipping 18 matching lines @@
     "proto/study.proto",
     "proto/variations_seed.proto",
     "study_filtering.cc",
     "study_filtering.h",
     "variations_associated_data.cc",
     "variations_associated_data.h",
     "variations_seed_processor.cc",
     "variations_seed_processor.h",
     "variations_seed_simulator.cc",
     "variations_seed_simulator.h",
+    "variations_url_constants.cc",
+    "variations_url_constants.h",
   ]
 
   deps = [
     "proto",
     "//base",
     "//base:prefs",
     "//third_party/mt19937ar",
   ]
 
   if (is_android) {
@@ skipping 27 matching lines @@
 
   deps = [
     ":variations",
     "net",
     "proto",
     "//base:prefs_test_support",
     "//base/test:test_support",
     "//testing/gtest",
   ]
 }